(3MQH GdGSJNHGQGJ (B/s - (3cGf, OGjajOs; (3Cajhfj, YHO GddWjas ((3HjQhJ (B:s (3GdeDSSI GdYQHjI ddOQGSGJ hGdfTQ,s, 1987)
Keywords: (3GdeNGHQGJ GdYScQjIs; (3GdLGShSjIs